Link Indexer vs Google Indexing API: Which to Buy

A link indexer and the Google Indexing API are not competing purchases, because they cannot be pointed at the same URLs. A link indexer works on pages anywhere on the web, including domains you do not own, which is why link builders buy one. The Indexing API works only on properties you have verified in Search Console, and Google's own documentation narrows it further: it "can only be used to crawl pages with either JobPosting or BroadcastEvent embedded in a VideoObject". If you run an ordinary business site, that sentence rules out both options, and the thing that actually gets your pages indexed is a clean XML sitemap, IndexNow for Bing, and fixing whatever is holding the pages back.

This comparison comes up because two different sales pitches have blurred into one. Link indexing services advertise fast Google indexing. SEO platforms advertise submission through Google's official API. Both descriptions sound like they solve the same problem, so buyers line them up side by side and try to pick. The pick is usually wrong because the constraint that matters is not price or speed, it is which URLs each mechanism is legally and technically allowed to touch.

What a link indexer actually does

A link indexer takes a list of URLs and works to get them crawled. The important part is what it does not do: it does not submit them to Google in the official sense, because that channel is closed to anyone who has not verified the domain. Google retired its public Add URL form years ago and tied submission to verified ownership. A backlink you placed on someone else's blog is not a property you own, so no service on earth can officially submit it for you.

What these services do instead is arrange for those URLs to be discovered and crawled by other means, then check the live index afterwards to see which ones Google kept. That is a real service. It is also a different service from the one the word "submit" implies, and the vendors that are careful about the distinction are the ones worth shortlisting.

The better products in the category now bill on outcome rather than effort. You buy credits or tokens, and the ones spent on URLs that never made it into the index come back to your balance automatically after a verification window. Rapid URL Indexer runs that check across a fourteen day window; SpeedyIndex reports and refunds on day seven. Two vendors, near-identical deal structures, different patience. We compared the field on billing, refunds and reporting in our writeup of the best backlink indexer for SEO agencies.

What the Google Indexing API actually does

The Indexing API is a real Google API with a real endpoint, and it is far narrower than most people selling access to it let on. You call https://indexing.googleapis.com/v3/urlNotifications:publish with a notification type of either URL_UPDATED or URL_DELETED, all requests use application/json, and you can combine up to 100 calls into a single batch request. Default publish quota is 200 requests per day per project, and the per-minute ceiling across all endpoints defaults to 380. Those are project limits, not per-site limits, which surprises agencies running many clients from one Google Cloud project.

Then there is the restriction that decides this whole comparison. Google states that the API "can only be used to crawl pages with either JobPosting or BroadcastEvent embedded in a VideoObject". Job boards and livestream pages. That is the documented scope, and the higher quota tiers Google grants are explicitly tied to approval for those same content types.

Plenty of tools call the endpoint for ordinary pages anyway. It usually returns a success response, because the API accepts the notification before anything downstream evaluates it. A success response is not the same as a commitment to crawl, and building a purchasing decision on an undocumented behavior that Google can change without notice is a weak foundation for a business site. If you sell a product with JobPosting or livestream markup, the API is exactly right for you and you should use it. If you sell anything else, it is not the lever you were told it was.

Link indexer vs Google Indexing API

Read the last row as the answer to the question in the title. For most site owners, neither column describes them.

Can a link indexer submit URLs on my own site?

It can accept them and work on them, yes, and this is where money gets wasted. Your own pages already have official routes to Google that cost nothing: an XML sitemap listed in robots.txt and submitted in Search Console, plus IndexNow for Bing, plus Request Indexing in Search Console for individual urgent URLs at roughly ten to twelve per day per property. Paying a third party to arrange indirect crawling of URLs that Google can already reach through your sitemap is paying to solve a discovery problem you almost certainly do not have.

When your own pages are not getting indexed, discovery is rarely the cause. Google found them and decided against them, or found them and has not gotten to them yet, and those two situations show up in Search Console as different statuses with different fixes. Crawled currently not indexed usually points at quality, thinness or duplication. Discovered currently not indexed more often points at crawl capacity or weak internal linking. Neither is solved by resubmission, from any tool, at any price.

How many URLs can you submit with the Google Indexing API?

The published default is 200 publish requests per day per Google Cloud project, with a default of 380 requests per minute across all endpoints of the API. You can batch up to 100 calls into one HTTP request, which helps with rate limiting but does not raise the daily ceiling. Higher quota is available by request, and Google ties that approval to using the API for pages with JobPosting or BroadcastEvent markup, so the quota conversation and the eligibility conversation are the same conversation.

The per-project detail catches agencies out regularly. If you manage thirty client sites from one Cloud project, all thirty share the same 200 daily requests. Separate projects per client is the workaround, and it is worth setting up before you build the workflow rather than after.

So what should you actually buy?

Work down three questions in order and the purchase decides itself.

Do you own the domains? If no, buy a link indexer and evaluate on refund policy and verification window rather than on speed claims. We compare the main vendors honestly, including where they beat us, on our SpeedyIndex alternative comparison and across the rest of the indexing tool alternatives.

Do your pages carry JobPosting or BroadcastEvent markup? If yes, use the Indexing API directly. It is free, it is documented for exactly your case, and you do not need a vendor between you and the endpoint. Our Google Indexing API guide covers the setup, the quota model and the failure modes.

If both answers are no, which covers most ecommerce stores, SaaS sites, publishers and local businesses, then the purchase you need is not a submitter at all. It is measurement plus diagnosis. Start by running your sitemap through a bulk index checker so you have a real coverage number instead of a feeling, because a large share of the URLs people pay to index turn out to already be indexed. Then work the reasons behind the ones that are genuinely missing, and use IndexNow to keep Bing current, since Bing does have an open submission protocol and Google does not.

Getting indexed is the start of the measurement, not the end

One habit separates teams who spend well here from teams who keep buying credits. Indexation is a threshold, not a result. A page that entered the index at position 60 for its target query has consumed budget and returned nothing yet, and no indexing tool will tell you that, because none of them look at rankings. Once a batch of pages is confirmed in the index, the honest next step is to track where those pages actually land in the results over the following weeks, which is what converts an indexing number into a revenue argument.

That feedback loop also settles the buying question permanently. If indexed pages consistently arrive and then rank, discovery really was your bottleneck and spending there is justified. If they arrive and sit at the bottom of page five, the constraint was never indexing, and every dollar aimed at faster submission was aimed at the wrong problem.